GB625646A - Improvements in or relating to processes for manufacturing mercaptans and the products thereof - Google Patents
Improvements in or relating to processes for manufacturing mercaptans and the products thereofInfo
- Publication number
- GB625646A GB625646A GB17685/43A GB1768543A GB625646A GB 625646 A GB625646 A GB 625646A GB 17685/43 A GB17685/43 A GB 17685/43A GB 1768543 A GB1768543 A GB 1768543A GB 625646 A GB625646 A GB 625646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon atoms
- mercaptans
- isobutylene
- olefines
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/02—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols
- C07C319/04—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols by addition of hydrogen sulfide or its salts to unsaturated compounds
Abstract
Mercaptans having 8-20 carbon atoms in the alkyl radical are made by reacting a polymerized olefine including alicyclic olefines having the same number of carbon atoms with hydrogen sulphide at a temperature of 75-150 DEG C. (preferably 100-150 DEG C.) in the presence of a catalyst chosen from the class consisting of an activated clay, a mineral acid, activated carbon, silica gel, and metallic oxide catalysts. A little mineral acid may be used to promote activity of the catalyst. In examples, hydrogen sulphide is reacted in presence of activated clay with (1) tri-isobutylene; (2) a mixture of diamylenes; (3) a mixture of polymerized olefines having an average of thirteen carbon atoms. Di- and tetra-isobutylene are also mentioned. Specification 625,647, [Group IV (a)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US625646XA | 1942-09-19 | 1942-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB625646A true GB625646A (en) | 1949-07-01 |
Family
ID=22043312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17685/43A Expired GB625646A (en) | 1942-09-19 | 1943-10-26 | Improvements in or relating to processes for manufacturing mercaptans and the products thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB625646A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5627250A (en) * | 1993-03-30 | 1997-05-06 | Nippon Zion Co., Ltd. | Unsaturated nitrile-conjugated diene copolymer, process for producing same and rubber composition |
| EP1674453A1 (en) * | 2004-12-15 | 2006-06-28 | Basf Aktiengesellschaft | Process for preparing thiols |
| US7235697B2 (en) | 2004-12-15 | 2007-06-26 | Basf Aktiengesellschaft | Use of H2S-containing offgas streams for preparing sulfur-containing products |
-
1943
- 1943-10-26 GB GB17685/43A patent/GB625646A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5627250A (en) * | 1993-03-30 | 1997-05-06 | Nippon Zion Co., Ltd. | Unsaturated nitrile-conjugated diene copolymer, process for producing same and rubber composition |
| EP1674453A1 (en) * | 2004-12-15 | 2006-06-28 | Basf Aktiengesellschaft | Process for preparing thiols |
| US7235697B2 (en) | 2004-12-15 | 2007-06-26 | Basf Aktiengesellschaft | Use of H2S-containing offgas streams for preparing sulfur-containing products |
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